Vaadin on Grails

Rapid development of Rich Internet Apps in Vaadin with Grails.

When we were developing Vaadin
applications, we were feeling excited about how the development of a
user interface was easy. We could play with the UI and still think about it as object structures in Java.

Then we started to think over how beneficial integrating Spring framework into Vaadin could be.
We needed dependency injection, AOP, JPA, i18n and environments, which can be provided
Grails.